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Insulation Flow Balancing

This case study investigates the balancing of forced flow through a perforated flow distribution manifold situated between the thermal insulation and the bottom of a cylindrical test cavity that forms part of a highly specialized experimental facility. The purpose of the insulation and manifold is to adequately insulate the very high temperatures within the test section while still allowing forced flow of gas to enter at the bottom of the test cavity.

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Finned Tube Heat Exchanger - Transient

This case study demonstrates the transient thermal fluid simulation of a finned tube heat exchanger. The finned tube heat exchanger model can also be used in cycle analysis where it is used in conjunction with other models (See “Start-up of two-shaft High-Temperature Gas-Cooled Nuclear Power plant” case study).

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Capillary Tube

This case study demonstrates the modeling of a capillary tube. Capillary tubes are used as expansion devices on some vapor-compression refrigeration systems. The refrigerant used in this case study is R22.

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Midvaal Water Reticulation

Midvaal Water Company approached M-Tech Industrial with the need to optimize their existing reticulation network. Their intention was to not only use the thermal-hydraulic model of the water reticulation network as a cost effective solution to their immediate problem areas, but also as a basis model for pump scheduling and possible future integration with their plant control system. A user friendly human machine interface allowed operators and engineers to use the high fidelity model of their reticulation system with minimal amounts of training.

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Water Reticulation Network

This case study demonstrates the steady-state simulation of the fresh water (drinking water) reticulation system in a small village.

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Air Cooling Units in Deep Mines

Flownex provided M-Tech the first-to-market advantage by providing clients in the mining industry proof of the economical benefit associated with the Air Cooling Units. Flownex provided fast and accurate solutions of the existing Chilling Water Cars and the proposed new Air Cooling Units. The simulation results were used to evaluate the business case of Air Cooling Units when it is implemented at depths in excess of 2km compared to the existing Chilling Water Cars utilized in the mining industry. The business case involved detailed calculations of what the influence of the addition or omission of surface cooling towers and chillers would be on the power consumption of the proposed system incorporating Air Cooling Units.

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Chilled Water Distribution Network

This case study demonstrates the modeling of a chilled water distribution network on a deep mine.

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Control of a Chiller Plant

This case study demonstrates the control of a three stage chiller plant that cools water in a primary loop, which feeds into a secondary loop with a heat load. 

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Compressed Air Network

This case study demonstrates the steady-state simulation of a compressed air network used in the mining industry.

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Vapor-Compression Refrigeration System

This case study demonstrates the modeling of a vapor compression refrigeration system using R22 as refrigerant. Both a steady-state and a transient simulation will be considered. 

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