Archive for the 'Heat Pump Efficiency' Category

which system would be more energy efficent/cost effective for a 2 bedroom single storey house?

Friday, February 3rd, 2012

Question by Mr Yankee: which system would be more energy efficent/cost effective for a 2 bedroom single storey house? 1) A Halcyon 12RLS Wall Heat Pump 25 SEER or 2) A high efficiency gas boiler (95%) and high efficiency central (14 sear) ac unit. Thanks Best answer: Answer by Megan R.Look at the SEER number, [...]

efficiency problem, thermo?

Monday, January 16th, 2012

by Chris Devers Question by M: efficiency problem, thermo? suppose we operate a Carnot engine in reverse to pump heat from a reservoir at 0C into a heat reservoir at 120C. How much mechanical work must we supply per joule of heat removed from the 0C? Best answer: Answer by schmisoConservation of energy requires, that [...]

Q&A: Tax credit for Energy Efficiency?

Sunday, January 1st, 2012

by cliff1066™ Question by tnis0612: Tax credit for Energy Efficiency? I’m renovating a house and will be putting in a new heat pump system in 2009 and probably all new windows in 2010. With the tax credit being a max of 00 does that mean I can recover 00 each year or just 00 total? [...]

energy efficiency tax credit?

Monday, December 19th, 2011

by Chim Chim Question by ash: energy efficiency tax credit? I filed my 2010 taxes through turbo tax and went for the up to 00 tax credit for replacing household windows, doors, etc. now i had a new energy efficient heat pump and outside condenser put in, it cost 5500 roughly. but all i got [...]

Q&A: Thermodynamics question? Can anyone please help me in solving this question?

Sunday, December 18th, 2011

Question by R M: Thermodynamics question? Can anyone please help me in solving this question? 1)A gas turbine has an efficiency of 18%. For every kg of fuel consumed by the engine heat in the amount of 41.873 MJ is being released. If the power developed is 5970 kW calculate the fuel mass flow rate. [...]