HEATING SYSTEM FOR A PASSIVE HOUSE IN FINLAND Tatiana Dzhigit
... conditions of Finland. The comparison is made by the economic criteria. The study consists of the theoretical part which describes the Passivhaus standard and structural features of the passive house, alternative energy sources and the three heating systems for the passive house; and practical part ...
... conditions of Finland. The comparison is made by the economic criteria. The study consists of the theoretical part which describes the Passivhaus standard and structural features of the passive house, alternative energy sources and the three heating systems for the passive house; and practical part ...
numerical modeling and analytical validation for the movement of
... the solar energy system during periods of bright sunshine thus can be injected and stored underground and extracted in the time of demand. Direct use of groundwater with relatively high volumetric heat capacity makes ATES system more efficient than any other system (e.g. closed system like borehole ...
... the solar energy system during periods of bright sunshine thus can be injected and stored underground and extracted in the time of demand. Direct use of groundwater with relatively high volumetric heat capacity makes ATES system more efficient than any other system (e.g. closed system like borehole ...
A. Temperature. - Gordon State College
... Thermal Energy Thermal energy in a sparkler • Temperature of sparks very high (2000oC) • Lot of energy per molecule of spark • Total energy is small due to relatively few ...
... Thermal Energy Thermal energy in a sparkler • Temperature of sparks very high (2000oC) • Lot of energy per molecule of spark • Total energy is small due to relatively few ...
- Indian Society for Heat and Mass Transfer
... test heater wire are connected across the studs and necessary electrical connections are made. It is confirmed that both the heaters are completely submerged in water. The water is heated by bulk heat to its Saturation temperature. Then the supply to nichrome wire heating is started and heat flux is ...
... test heater wire are connected across the studs and necessary electrical connections are made. It is confirmed that both the heaters are completely submerged in water. The water is heated by bulk heat to its Saturation temperature. Then the supply to nichrome wire heating is started and heat flux is ...
ULTRASONIC MICROHEATERS USING PIEZO-CERAMICS
... for MEMS application was discussed. The PZT heaters were found to attain maximum thermal efficiency around the resonance frequency. In selecting the drive frequency, there was a compromise between the maximum temperature, which was achieved at frequency of minimum impedance, and maximum efficiency, ...
... for MEMS application was discussed. The PZT heaters were found to attain maximum thermal efficiency around the resonance frequency. In selecting the drive frequency, there was a compromise between the maximum temperature, which was achieved at frequency of minimum impedance, and maximum efficiency, ...
Indiana University - Purdue University Fort Wayne Department of Engineering ENGR 411
... commissioned the design of a solar cooling demonstration unit. The unit is to be based upon and active type solar cooling system. The unit is also to make use of an absorption cycle and a desiccant. For the detailed mechanical design, an Engineering Equation Solver program was created to model the a ...
... commissioned the design of a solar cooling demonstration unit. The unit is to be based upon and active type solar cooling system. The unit is also to make use of an absorption cycle and a desiccant. For the detailed mechanical design, an Engineering Equation Solver program was created to model the a ...
Lowering Water Temperature in Hydronic Heating
... when operated at lower water temperatures, and because of global efforts at energy conservation and reduced carbon emissions, the hydronic heating industry worldwide is steadily progressing toward low water temperature systems. In the absence of specific regulations or codes that require otherwise, ...
... when operated at lower water temperatures, and because of global efforts at energy conservation and reduced carbon emissions, the hydronic heating industry worldwide is steadily progressing toward low water temperature systems. In the absence of specific regulations or codes that require otherwise, ...
The Definitive Guide to Heating Your Swimming Pool
... Several heating methods are available to you, each with its own advantages and disadvantages. This section discusses electric resistance heaters, gas heaters, heat pumps, and solar heaters. Different methods are best suited for different swimming pools. Therefore, when shopping for a heater, you sho ...
... Several heating methods are available to you, each with its own advantages and disadvantages. This section discusses electric resistance heaters, gas heaters, heat pumps, and solar heaters. Different methods are best suited for different swimming pools. Therefore, when shopping for a heater, you sho ...
Residential Ground-Source Heat Pumps: In
... The full load system performance is actually better than the part load system performance. The authors speculate that this is due to the high single-speed ground loop flow rate and will be monitoring a similar system by the same HVAC contractor with a two speed ground loop pump to investigate this f ...
... The full load system performance is actually better than the part load system performance. The authors speculate that this is due to the high single-speed ground loop flow rate and will be monitoring a similar system by the same HVAC contractor with a two speed ground loop pump to investigate this f ...
FIREBAR Flat Tubular Heaters
... tubular heating element without changing the sheath temperature. The FIREBAR heater also enables you to place more wattage into applications at the same watt density without using a longer heating element. ...
... tubular heating element without changing the sheath temperature. The FIREBAR heater also enables you to place more wattage into applications at the same watt density without using a longer heating element. ...
kaashyap ksl kat
... For instance consider an 11cm long BST/Ni multilayer tube with an outer diameter and an inner diameter of 14mm and 10mm respectively. The tilt angle and the thickness of each BST/Ni layers were approximately 35 o and approximately 1.3 mm respectively. The electrical resistance R e of the BST/Ni tube ...
... For instance consider an 11cm long BST/Ni multilayer tube with an outer diameter and an inner diameter of 14mm and 10mm respectively. The tilt angle and the thickness of each BST/Ni layers were approximately 35 o and approximately 1.3 mm respectively. The electrical resistance R e of the BST/Ni tube ...
Modeling heat extraction from hot dry rock in a multi
... in a multi-well system has been received much attention recently. The economic use of geothermal energy is currently limited to a small number of the conventional geothermal steam and hot water reservoirs. Limited by the low thermal conductivity of the rock, the geothermal exploitation must have a s ...
... in a multi-well system has been received much attention recently. The economic use of geothermal energy is currently limited to a small number of the conventional geothermal steam and hot water reservoirs. Limited by the low thermal conductivity of the rock, the geothermal exploitation must have a s ...
a study on the behavior of steam condensation in u
... Experiment was carried out with condition of steam flow rate 14 kg/hr, outlet steam pressure P3 0.1 MPa-G. Two-phase or saturated water was flowed out at the position of outlet of test section at 9600 sec to 10200 sec because the temperature of outlet of test section agreed with saturation temperatu ...
... Experiment was carried out with condition of steam flow rate 14 kg/hr, outlet steam pressure P3 0.1 MPa-G. Two-phase or saturated water was flowed out at the position of outlet of test section at 9600 sec to 10200 sec because the temperature of outlet of test section agreed with saturation temperatu ...
Ultra-Thin Flexible Heaters
... It is usually more cost effective to select from our standard heater ranges for application testing. We have more than 28,000 standard Ultra-Thin Flexible Heaters to select from and more than 18,000 are cUL and CE certified. It is recommended that you select the heater that is closest to your specif ...
... It is usually more cost effective to select from our standard heater ranges for application testing. We have more than 28,000 standard Ultra-Thin Flexible Heaters to select from and more than 18,000 are cUL and CE certified. It is recommended that you select the heater that is closest to your specif ...
Passive and Active Solar Heating Systems
... strategy, when the outside a i r i s very cold and heat losses from the building are large, comparatively warm water in storage may go unused for a time while the a u x i l i a r y supply i s meeting the large load demand. However, stored solar heat w i l l be called upon when the load i s less seve ...
... strategy, when the outside a i r i s very cold and heat losses from the building are large, comparatively warm water in storage may go unused for a time while the a u x i l i a r y supply i s meeting the large load demand. However, stored solar heat w i l l be called upon when the load i s less seve ...
Complete Paper
... hot water supply), is easy to build and operate, no fuel cost, provides heated water of about 70 °C or within the range, and is portable. They, however, have the following disadvantages: cannot withstand mains pressure, cannot give higher temperature water, are affected by weather conditions, very u ...
... hot water supply), is easy to build and operate, no fuel cost, provides heated water of about 70 °C or within the range, and is portable. They, however, have the following disadvantages: cannot withstand mains pressure, cannot give higher temperature water, are affected by weather conditions, very u ...
Lecture No.8 8.1 Modes of heat loss
... greenhouses. The most common and least expensive is the unit heater system. In this system, warm air is blown from unit heaters that have self contained fireboxes. These heaters consist of three functional parts. Fuel is combusted in a firebox to provide heat. The heat is initially contained in the ...
... greenhouses. The most common and least expensive is the unit heater system. In this system, warm air is blown from unit heaters that have self contained fireboxes. These heaters consist of three functional parts. Fuel is combusted in a firebox to provide heat. The heat is initially contained in the ...
Heat Transfer
... or, in some cases, a gas or oilfired burner. Cold water enters the heater through a pipe near the bottom of the tank. As this water is heated, it rises, setting up convection currents that carry heat throughout the tank. Hot water is drawn off for use through a pipe at the top of the tank and is ...
... or, in some cases, a gas or oilfired burner. Cold water enters the heater through a pipe near the bottom of the tank. As this water is heated, it rises, setting up convection currents that carry heat throughout the tank. Hot water is drawn off for use through a pipe at the top of the tank and is ...
U3 S1 L3 calorimetry
... specific heat capacity of metals. A piece of thallium having a mass of 111.2 g is warmed to 95.0ºC and placed into the calorimeter containing 125.00 g of water at 12.5ºC. The water temperature goes up to 14.9ºC. Use this information to calculate the specific heat capacity of thallium. The specific h ...
... specific heat capacity of metals. A piece of thallium having a mass of 111.2 g is warmed to 95.0ºC and placed into the calorimeter containing 125.00 g of water at 12.5ºC. The water temperature goes up to 14.9ºC. Use this information to calculate the specific heat capacity of thallium. The specific h ...
SUPAPAC Plate Heat Exchangers
... 3. Primary and secondary inlet and outlet temperatures. It is sometimes necessary to design an exchanger to meet an undetermined maximum or minimum temperature. When such a design is called for we require at least one temperature and the available flow rate for both the primary and secondary sides. ...
... 3. Primary and secondary inlet and outlet temperatures. It is sometimes necessary to design an exchanger to meet an undetermined maximum or minimum temperature. When such a design is called for we require at least one temperature and the available flow rate for both the primary and secondary sides. ...
Educational kit experiment PELTIER module C-1100
... people through a fun and surprising experiment. It's about seeing what happens when you fill a bucket with cold water and one with hot water and try to understand the thermoelectric process that transforms this temperature difference in the power to turn the propeller of an electric motor. Is still ...
... people through a fun and surprising experiment. It's about seeing what happens when you fill a bucket with cold water and one with hot water and try to understand the thermoelectric process that transforms this temperature difference in the power to turn the propeller of an electric motor. Is still ...
Process Control Design of ITER Heat Rejection System
... I&C Function for Heat Removal • Balance of heat removal depends largely on correctness of this control loop, two temperature sensors are used in 1oo2 (Max) configuration. • The measured temperature is compared with set-point of 31 °C and speed reference of VFD is generated using a PID control. • Wh ...
... I&C Function for Heat Removal • Balance of heat removal depends largely on correctness of this control loop, two temperature sensors are used in 1oo2 (Max) configuration. • The measured temperature is compared with set-point of 31 °C and speed reference of VFD is generated using a PID control. • Wh ...
Specific Heat Capacity and Latent Heat Questions
... ofthe beaker and water is measured again, it is found that it has decreased by 94 g. (i) Calculate a value for the specific latent heat of vaporisation of water. Q = ml = Pt 94 × 10−3 x l = 2000 × 105 (1 mark) l = 2.2 × 106 J kg−1 (1 mark) (ii) State two assumptions made in your calculation. no ev ...
... ofthe beaker and water is measured again, it is found that it has decreased by 94 g. (i) Calculate a value for the specific latent heat of vaporisation of water. Q = ml = Pt 94 × 10−3 x l = 2000 × 105 (1 mark) l = 2.2 × 106 J kg−1 (1 mark) (ii) State two assumptions made in your calculation. no ev ...
Heating Systems for Low Energy Buildings
... These traditional answers revisiting when discussing low energy / low carbon buildings. Some of the options available are listed in Table 1. This gives rise to many different permutations. Whilst heating systems may seem simple, in practice there are many factors to be considered during the design p ...
... These traditional answers revisiting when discussing low energy / low carbon buildings. Some of the options available are listed in Table 1. This gives rise to many different permutations. Whilst heating systems may seem simple, in practice there are many factors to be considered during the design p ...
experiment 1 - University of Delhi
... 1. A major source of error in calorimetric measurements is the loss of heat by radiation. How can the procedure be modified to minimize it, while using the same apparatus? 2. Suggest alternatives to Dewar/Thermos flask. TROUBLE SHOOTING Time of Mixing In case the mixing of hot and cold water was not ...
... 1. A major source of error in calorimetric measurements is the loss of heat by radiation. How can the procedure be modified to minimize it, while using the same apparatus? 2. Suggest alternatives to Dewar/Thermos flask. TROUBLE SHOOTING Time of Mixing In case the mixing of hot and cold water was not ...
Water heating
Water heating is a thermodynamic process that uses an energy source to heat water above its initial temperature. Typical domestic uses of hot water include cooking, cleaning, bathing, and space heating. In industry, hot water and water heated to steam have many uses.Domestically, water is traditionally heated in vessels known as water heaters, kettles, cauldrons, pots, or coppers. These metal vessels that heat a batch of water do not produce a continual supply of heated water at a preset temperature. Rarely, hot water occurs naturally, usually from natural hot springs. The temperature varies based on the consumption rate, becoming cooler as flow increases.Appliances that provide a continual supply of hot water are called water heaters, hot water heaters, hot water tanks, boilers, heat exchangers, geysers, or calorifiers. These names depend on region, and whether they heat potable or non-potable water, are in domestic or industrial use, and their energy source. In domestic installations, potable water heated for uses other than space heating is also called domestic hot water (DHW).Fossil fuels (natural gas, liquefied petroleum gas, oil), or solid fuels are commonly used for heating water. These may be consumed directly or may produce electricity that, in turn, heats water. Electricity to heat water may also come from any other electrical source, such as nuclear power or renewable energy. Alternative energy such as solar energy, heat pumps, hot water heat recycling, and geothermal heating can also heat water, often in combination with backup systems powered by fossil fuels or electricity.Densely populated urban areas of some countries provide district heating of hot water. This is especially the case in Scandinavia and Finland. District heating systems supply energy for water heating and space heating from waste heat from industries, power plants, incinerators, geothermal heating, and central solar heating. Actual heating of tap water is performed in heat exchangers at the consumers' premises. Generally the consumer has no in-building backup system, due to the expected high availability of district heating systems.