Mixing Unit Conditioning for Rapid Test Bench Temperature Control
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Solution Overview
Problem
Existing test bench conditioning systems face challenges in rapidly and precisely controlling the temperature of operating media in test object circuits due to high thermal inertia, leading to insufficient control over temporal temperature profiles.
Innovation Solution
A mixing unit and conditioning unit are integrated into the test bench system, allowing for the miscibility of preconditioned operating media with the test object circuit media to achieve a predefined setpoint temperature, with adjustable flow rates and partial flow lines to optimize mixing ratios and minimize pressure loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional conditioning systems are used to control temperature of operating media, then temperature conditioning can be achieved, but rapid temperature changes cannot be controlled sufficiently due to high thermal inertia
Solution Approach 1:
The operating medium flow is divided into multiple partial flows, each conditioned separately to different temperatures, then recombined to achieve precise overall temperature control. This segmentation allows independent control of different flow portions to overcome thermal inertia limitations.
Solution Approach 2:
The system changes the temperature parameter of different partial flows independently through separate conditioning units, then combines them to achieve the desired setpoint temperature. This parameter manipulation enables rapid and precise temperature control despite high thermal inertia of the operating medium.
2Stability of the object's composition
If mixing unit is integrated into test object circuit, then homogeneous mixture and low pressure loss are achieved, but system complexity increases
Solution Approach 1:
The mixing unit merges the conditioning circuit with the test object circuit, allowing preconditioned operating medium to be mixed with test object circuit medium. This integration achieves homogeneous mixing while the unit is designed to minimize pressure loss through optimized flow paths and connections.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables rapid and precise temperature conditioning of the operating medium in the test object circuit, effectively addressing the limitations of existing systems by ensuring quick and homogeneous temperature achievement while maintaining low pressure loss.
Implementation Method 1
a mixing region is provided in the mixing unit, in which mixing region the operating medium of the test object circuit is miscible with preconditioned operating medium from a conditioning circuit
Implementation Method 2
conditioning an operating medium of a test object circuit of a test object mounted on the test bench to a predefined setpoint temperature
Data Source
AI summary
To condition an operating medium in a test object circuit (PK) of a test object (P) on a test bench to a desired temperature as quickly as possible, the invention proposes providing a mixing unit (3), there being provided, in the mixing unit (3), a mixing region (28) in which operating medium of the test object circuit (PK) can be mixed with preconditioned operating medium from a conditioning circuit (KK) in order to condition the operating medium in the test object circuit (PK) to the predefined setpoint temperature (T_SOLL), there being provided, on the mixing unit (3), for the fluidic integration of the mixing unit (3) in the test object circuit (PK), at least one test object circuit supply connection (26a) and at least one test object circuit outlet connection (26b) which are fluidically connected to one another via the mixing region (28) in order to form a part of the test object circuit (PK), there being provided, on the mixing unit (3), for connection of the mixing unit (3) to a conditioning unit (2) of the conditioning system (1), at least one conditioning unit supply connection (27a) and at least one conditioning unit return connection (27b) which are fluidically connected to one another via the mixing region (28) in order to form a part of the conditioning circuit (KK) for the operating medium.