Several optimal discharge pressure correlations for transcritical CO2 heat pump in literature have been discussed in this paper. Most of them are related to the ambient temperature, the evaporation temperature and the gas cooler outlet temperature. A revised optimal discharge pressure model as the function of ambient temperature and water outlet temperature is developed based on earlier experim...

A human life demand set to emerge in the future is the achievement of sustainability by maintaining a comfortable indoor environment without excessive reliance on energy-consuming air conditioners. The major research processes in this study are: (1) measuring indoor air quality and thermal comfort to evaluate the comfort of an indoor environment; (2) implementing questionnaire survey analysis t...

Solar energy is the highly recognized energy source, capable of fulfilling the world’s future energy demands. The solar photovoltaic technology involves the unmediated transformation of sunlight into electricity. A little fraction is converted into electricity and the remaining gets exhausted as unused heat. This results in an increase in the operating temperature of the PV Panel. The conversio...

A dehumidifier is a device for drying air by releasing moisture. with thermoelectric cooler has the advantage of being more compact and potential to be combined an heater. This study aimed determine effect power airflow on temperature relative humidity. The research method uses direct experiments six pieces as coolant. data taken are surface temperature, that dried, humidity air. test results s...

Soil temperature measurements from a Climate Analysis Network (SCAN) monitoring site in the Ozark Highlands Major Land Resource Area (MLRA 116A) were evaluated on landscapes comprising Typic Fragiudults (Scholten series) and Paleudults (Poynor series). The five soil forming factors similarfor both soils, with major difference between adjacent soils being fragipan Scholten series. Air temperatur...

Our objectives were to study the loss of heat from ischemic brain and to devise a method of maintaining brain temperature. Reversible forebrain ischemia was induced by carotid clamping and exsanguination in 30 anesthetized and artificially ventilated rats. Rectal, skull, and brain temperatures were measured, confirming previous findings that brain temperature falls by 4-5 degrees C during 15 mi...

In recent years there has been more awareness about the impact of air pollution on the incidence of acute and chronic diseases. The aim of this study was to evaluate the correlation of certain meteorological factors, the concentration of nitrogen dioxide (NO2) in the air and the number of patients who were admitted in the Emergency Department of Internal Medicine, Sestre milosrdnice University ...