A solar assisted heat pump drying system has been designed, fabricated and tested. The performance of the system has been investigated under the meteorological conditions of Singapore. This paper presents an economic optimization of a solar assisted heat pump drying system. Economic viability of solar energy heating systems is usually made by compa

This paper describes a method of economic optimization of an integrated solar heat pump system for space cooling, water heating and drying. The system can serve three functions simultaneously or independently. A simulation model for this system was developed to study the influence different variables. The results were validated by a series of exper

This paper describes the heat transfer process and the movement of the solid-liquid interface when the energy is added to a PCM, paraffin wax, through a vertical wall heated under conditions of uniform heat flux and constant temperature. Experiments indicate that the initial mode of heat transfer in the melting process was purely conduction control

Extensive tests were carried out on the quality related properties, such as flavor, appearance, texture and nutritional values of mango and rockmelon samples dried under normal air heat pump dryer (HPD), modified atmosphere heat pump dryer (MAHPD) using N2, and CO2 and also vacuum and freeze dryers. For mangoes and rockmelons, the MAHPD dried sampl

In this study, the performance of a three-in-one solar system is investigated. The three applications of the system are: air-conditioning, water heating and drying, which can be served simultaneously or independently. The presence of evaporator-collector enables the system to operate round the clock. Parallel arrangement of the evaporator and evapo

This paper includes results of an investigation carried out on a desalination plant which consists of a direct expansion solar assisted heat pump (DXSAHP) coupled to a single-effect evaporator unit. The working fluid used in the heat pump is R134a. The distillate is obtained via falling film evaporation and flashing in the evaporator. Experiments h

Background Allergic conditions and respiratory tract infections (RTIs) are common causes of morbidity and mortality in childhood. The relationship between Vitamin D status in pregnancy (mothers), early life (infants) and health outcomes such as allergies and RTIs in infancy is unclear. To date, studies have shown conflicting results. Objective This

The aim of the study was to determine the effectiveness of using scratch program to teach Malay language subject. 32, 4th year students in a primary school of Seremban district participated in the study. A case study was used. The teachers teach Malay subjects using scratch programs with the theme of agriculture and title of food product from agric

Herbal medication and natural products have been successfully demonstrated to have general health beneficial effects. The bioactivities of flaxseed (linum usitatissimum) extract have been reported, as previous studies have shown that l. usitatissimum extract has many health and beneficial effects such as antimicrobial, anti-oxidant and anti-inflamm

Setiap insan mendambakan kasih yang tulus setia demi kelangsungan hidup yang bermakna. Dambaan sedemikianlah yang mendorong 20 penulis berkisah tentang pengalaman masing-masing dalam menelusuri kehidupan ini.DAMBAAN KASIH TULUS SETIA 1 Kisah dambaan kasih setia dalam kehidupan Cetakan Pertama Julai 2019 ©WACANAMBM Hak cipta adalah terpelihara. Tid