Present work focuses on frost accretion in a spine-finned inverted-V tube array evaporator. An experimental evaluation was performed using standard issue, vertical top-mount, 18 cubic feet, 0.5 m 3 , refrigerator. Evaporator temperature distribution, inner airflow velocity, and relative humidity were measured to account for convective phenomena influencing distribution. Frost formation the surf...

Housing stock and the objects of industrial production our country are represented by constructions, which were erected in XX century, XIX century pre-revolutionary time. Among them there constructions built with using natural stone brick. The service time this is several decades or hundreds years. Considerable amount value first generation cultural heritage under state protection. Nowadays, be...

At the end of shaft penetration under protection ice barrier and termination process freezing rocks, transition period from to thawing begins. First all, tubing support trunk layer rocks adjacent concrete are subjected thawing. this time, water is pumped through grouting holes in check tightness column, after which performed with cement mortar fixed space. Thus, an integral part work on waterpr...

Nowadays alternative protein sources like edible insects are becoming widely used as human food. One of the most popular insect is yellow mealworm (Tenebrio molitor) due to its high nutrition value. However, pretreatment and drying necessary increase food shelf life efficiency use. Due this, purpose present work was determination influence methods (freezing larvae for 1 month, freezing 2 hours,...

BACKGROUND: Freezing is a common way and one of the best methods of seafood preservation for long periods of time; however, the freeze thawing process may influence the quality of food. OBJECTIVES: Oxidation and denaturation of proteins, sublimation and recrystallization of ice crystals can cause changes in the quality of the frozen products. This study was aimed to evaluate the effect of three...

In this paper, dynamic simulations of the seasonal coefficient performance (SCOP) Air-Source Heat Pumps will be presented by considering three different heat pump systems coupled with same building located in Italian municipalities: S. Benedetto del Tronto (42°58′ North, 13°53′ East), Milan (45°28′ 9°10′ and Livigno (46°28′ 10°8′ East). Dynamic were conducted employing software package TRNSYS r...

Cryotherapy machines, also known as cryosurgery machines, continue to be widely used for surgical procedures of the eye such as retinal detachment repair, cataract extraction, glaucoma and so on. Cryotherapy machines (Figure 1) control the release of a compressed gas, stored under high pressure in a cylinder. When the foot pedal is depressed, the gas is regulated to a lower working pressure and...