ECONET for Automatic Temperature Control - Maniks

Basically Econet word is used as a low energy consumption network, but here Econet concept is based on intermittently and efficiently evaporating water on a large area in front of the heat rejection surface of Mini - Split, Rooftop, Air Cooled Chillers, Condensers and Dry Coolers.

Basically Econet word is used as a low energy consumption network, but here Econet concept is based on intermittently and efficiently evaporating water on a large area in front of the heat rejection surface of Mini - Split, Rooftop, Air Cooled Chillers, Condensers and Dry Coolers.

What is Econet
It is having fully automated control lets discuss the working of econet with a simple day today life example of greenhouse in the farms or in the nursery. The main purpose of that greenhouse is to protect the plants from direct sunlight and keep the atmosphere cool. When the temperature exceeds to a certain limit the temperature in the greenhouse is been maintained by Heaters, Vents and fans. Vents and Fans help to cool the greenhouse on a sunny day, even at 20 degrees below zero; greenhouse air can heat up well beyond healthful levels. As these are conventional ways to control the temperature which are not much economic so Maniks introduced a very user friendly and economic device to control the temperature known as an "Econet".

How it Works
Econet uses water spray to control the temperature and for automatic control it uses sensors. Water spray provides an adiabatic cooling effect of the incoming air stream and it can be either initiated via an ambient sensor or alternatively by refrigeration head pressure override i.e. condensing pressure limit. As soon as these settings exceed a pre-set level the ECONET controller initiates water spray in order to lower the air on temperature for the condenser, hence, the condensing pressure can be lowered in order to save energy during high ambient periods
http://www.maniks.com/econet.html

Features of Maniks Econet
There is a series of water spray sprinklers arranged parallel in order to provide uniform coverage area for good result of vaporation process. Nozzles are designed to operate with very low pressure and they can operate with normal city mains water pressure 1.5 Barg (21 psig) / (15m) and above.
Non metallic mesh provides an effective coverage area for an efficient evaporation surface with minimal air pressure drop Meshes are fixed in front of the heat rejection surface via spacer bars and/or fixing brackets to suit the unit configuration.
Custom made brackets are specially designed to match any coil configuration they can be hooked from the coil tubes in the coil and mesh area. Spray nozzles are also fitted as part of the bracket arrangement.
Water spray durations and frequencies are constantly adjusted by the ECONET intelligent controller in order to optimize the performance as well as minimize water consumption. The higher the ambient temperature longer the spray and the frequency of the spray is also increased to match the ambient conditions. Once the low ambient set point is reached the spray operation is automatically terminated.
The adiabatic cooling process is entirely driven by the incoming air humidity and Table 1 indicates the incoming air cooling capability of an ECONET system based on humidity ratios against various ambient dry bulb conditions.
It is equally important to minimize the water wastage and ECONET controller's intelligent intermittent spray operation together with set point limit minimizes the water consumption as much as 75% in comparison to a comparable cooling tower, evaporative or any other adiabatic air cooling units.


Temperature Controller
Econet controller is provided with internal override terminals for a volt free input which overrides the temperature set limit and initiate intermittent spray as soon as this terminal is linked. This facility can be used to provide head pressure or manual remote override flexibility.
Water is sprayed intermittently to wet the meshes. The spray rate and duration are adjusted by the PLC based controller to suit the ambient conditions.
Advantages of Econet
• Temperature control is carried out without human interactions
• Fully automated system is provided to mentain the temperature of the greenhouse
• Conserves more energy as compared to conventional systems
• Very economic and user friendly device
• Mentainance cost is very low
• Econet is an environment safe device

Applications of Econet
• AC condensers and dry cooling applications
• Air conditioning applications
• Refrigeration systems
• Greenhouses

http://www.maniks.com/

Featured Product

ResinDek® TRIGARD® ESD ULTRA FOR HIGH-TRAFFIC ROBOTIC APPLICATIONS

ResinDek® TRIGARD® ESD ULTRA FOR HIGH-TRAFFIC ROBOTIC APPLICATIONS

To maximize the productivity of an autonomous mobile robot (AMR) or automatic guided vehicle (AGV) deployment, it's critical to create the optimal environment that allows the vehicles to perform at their peak. For that reason, Cornerstone Specialty Wood Products, LLC® (www.resindek.com) created the TriGard® ESD Ultra finish for its ResinDek® engineered flooring panels. The TriGard ESD Ultra finish is ideal for high-traffic robotic applications characterized by highly repetitive movement patterns and defined travel paths.