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The aim of this paper is to re-examine the energy–GDP relationship for the US for the period 1946–2000 by redefining … energy in terms of exergy (the amount of energy available for useful work) and the amount of useful work provided from energy … inputs. This enables us to examine whether output growth depends on either the quantity of energy supplied and/or the …
Persistent link: https://www.econbiz.de/10010810252
for purchasing efficient equipment. IHDs provide consumers with direct feedback—real-time information on energy …In theory, In-Home Displays (IHDs) can revolutionize the way utilities communicate information to customers because …
Persistent link: https://www.econbiz.de/10011053783
terms of a parameter, energy efficiency. The quantitative relationship of OCV (open circuit voltage) and SOC (state of … charge) for Ni-MH batteries is firstly established to calculate the energy efficiency. Then a comprehensive comparison of the … energy efficiency for Ni-MH and Li-ion batteries is systemically analyzed under different operating conditions. The results …
Persistent link: https://www.econbiz.de/10010811441
This paper presents an experimental study of R152a and R32, environment-friendly refrigerants with zero ozone depletion ….5% lower than that of R134a. The system consumed less energy when R152a was used. The performance of R152a in the domestic …
Persistent link: https://www.econbiz.de/10010807359
In the paper the results of an experimental investigation developed on a small turbocharger turbine for automotive … application are presented, including the effect of the waste-gate valve opening. The study was focused on the evaluation of …
Persistent link: https://www.econbiz.de/10010808958
Water management in an AB-PEMFC (air-breathing proton exchange membrane fuel cell) poses a big challenge due to its passive operation. The issue is addressed in a passive way by designing the fuel cell with low thermal conductivity materials. Use of low thermal conductivity materials for cell...
Persistent link: https://www.econbiz.de/10010810640
winter climatic condition of Bursa, Turkey. For this purpose, a previously used experimental facility on cooling cycle … [Coskun S, Pulat E, Unlu K, Yamankaradeniz R. Experimental performance investigation of a horizontal ground source compression … refrigeration machine. International Journal of Energy Research 2008; 32: 44–56] was modified for the heating cycle. Soil thermal …
Persistent link: https://www.econbiz.de/10010811135
models that can predict the hourly distillate productivity are developed. These compared well with the experimental results …
Persistent link: https://www.econbiz.de/10010811339
An experimental system for heat recovery from low-temperature flue gas based on Organic Rankine Cycle (ORC) was … the system output parameters is slight. Under the present experimental conditions, the maximum output power of the …
Persistent link: https://www.econbiz.de/10011053050
The DX GSHP (direct-expansion ground source heat pump), which uses a buried copper piping network through which refrigerant is circulated, is one type of GSHP (ground source heat pump). This study investigates the performance characteristics of a vertical U-bend direct-expansion ground source...
Persistent link: https://www.econbiz.de/10011053088