air conditioning refrigerant r134a has value of global warming potential (gwp) 1300, which is much higher than mac directive (gwp below 150) passed in july 2006. this prompted a search for alternative refrigerant with gwp value less than 150. r1234yf is a new refrigerant which has lower gwp value of 4. effect of blower speed has been compared and flammability issue of r1234yf has been addressed...

Penelitian ini bertujuan untuk mengevaluasi kinerja panas pada pengering rak mendukung proses penyediaan benih jagung. bekerja sama dengan petani Kecamatan Wuluhan yang bermitra perusahaan penyedia PT. East West Seed Indonesia. Pengering sudah dibuat terdiri atas sumber pemanas, blower, rak, dinding dalam dan luar, rangka, lubang pengeluaran udara, thermostat alat ukur temperatur secara digital...

A pragmatic design strategy to achieve unusual mechanical responses in metal lattice structures is deployed. This strategy, referred as behavior by design, illustrated with an architectured material fabricated provide a “whistle-blower” response under tensile loading. Struts geometries, e.g. dog-bone struts and corrugated struts, are assembled parallel standard unit-cell obtain the targeted ela...

Ntambwe Malangu The implementation of the comprehensive plan for the care, management, and treatment of HIV and AIDS in South Africa [1] needs to be supported by all. It is encouraging to note that Wilson and Blower [2] used South Africa to develop a novel method to determine the optimal strategy for allocating antiretroviral treatment (ART) sites among healthcare facilities (HCFs) in KwaZulu–N...

BACKGROUND Several adverse consequences are caused by mild perioperative hypothermia. Maintaining normothermia with patient warming systems, today mostly with forced air (FA), has thus become a standard procedure during anesthesia. Recently, a polymer-based resistive patient warming system was developed. We compared the efficacy of a widely distributed FA system with the resistive-polymer (RP) ...

An existing open circuit wind tunnel has been modified to incorporate a secondary supply loop to provide controlled flow conditions at the inlet to a film cooling hole model. The primary or crossflow fluid enters from atmosphere through a smooth two dimensional contraction before entering the working section. The newly constructed supply loop has a single inlet from a high pressure source, in-l...