Hybrid chiller plants (HCPs) using multiple chillers and different energy sources are highly recommended in several applications non-residential buildings such as hospitals hotels. Time of use cooling load profiles are significant factors that should be carefully considered either plant design or sequencing operation. This article aims to present an operation planning HCP which consists bo...

Shrinkage defect in an alloy steel casting for marine engine cylinder cover was estimated by numerical analysis with reference to casting variables such as riser and chiller. Retained melt modulus was employed as a prediction parameter in this study. Shrinkage defects were developed at the final solidification region. This is associated with hot spots, which could be controlled more effectively...

District cooling (DC) systems have recently proven to be more economically and environmentally viable as compared conventional techniques. In most DC setups, electric centrifugal chillers (ECCs) are installed provide chilled water (CW) charge the thermal energy storage (TES) tank or for direct CW supply network. The operation of these ECC consumes electrical power supplied entire plant; this th...

A Model Predictive Control (MPC) implementation was developed for a university campus chilled water plant. The plant includes three water-cooled chillers and a two million gallon chilled water storage tank. The tank is charged during the night to minimize on-peak electricity consumption and take advantage of the lower ambient wet bulb temperature. A detailed model of the chilled water plant and...

Chilled-water cooling systems used in the chemical processing, petroleum manufacturing, and power generation industries remain fertile ground for electrical energy savings. This is in spite of the lack of attention given to industrial cooling by energy auditors and rebate program designers. This article discusses the large energy savings that can be achieved through hardware and operational imp...

The experiment was conducted during the Kharif season of 2021-22 at Department Seed Technology, Sardarkrushinagar Dantiwada Agricultural University in Sardarkrushingar. It followed a Randomized Complete Block Design (Factorial concept) with three replications, utilizing GNT 2 variety. study aimed to investigate effects seven treatments and four rhizome sizes on various characteristics turmeric....

As part of the design process a chiller plant, one final stages is energy testing system in relation to future operating conditions. Recent studies have suggested establishing robust solutions, but conservative approach still prevails at this stage. However, results some recent suggest application new co-design (control–design) approach. The present research involves comparative analysis betwee...

AirConditioning Engineers (ASHRAE RP-1462). It is a three years' research, including the literature review, labs construction, experiments and data analysis. In this thesis, first of all, we conducted literature review of mechanism motion influence on heat and mass transfer and additive effect in absorption chiller. This part helps us understand the basic idea of how mechanism motion affects th...

To conserve building energy, optimal operation of a building’s energy systems, especially heating, ventilation and air-conditioning (HVAC) is important. This study focuses on the optimization central chiller plant, which accounts for large portion HVAC system’s consumption. Classic control methods plants are mostly based system performance models takes much effort cost to establish. In addition...